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Partial researchResearch snapshot 2026-09-13. Evidence gaps remain; see Coverage for requirements.

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Office briefing

VILLA DE ZAACHILA — Municipal government

Tracked current office. Identifiers stay separate from display names.

Mexico · VILLA DE ZAACHILA / OAXACA · municipal · Municipal governmentMX-M-20-566

Read the complete original research briefing

INE result distributions kept separate. Certified seats, supplementary elections, coalition and boundary audit remain.

1. What office, where, and when is the next election?

Geography
VILLA DE ZAACHILA / OAXACA
Next election
2027-06-06
Linked upcoming event
next-21f16c4a32207a5a49ce451e
Registry qualification
Unknown

2. How certain is that date?

2027-06-06 is expected (not formally called). Day precision. A date without a formal call is not confirmed.

3. Who won earlier selected elections?

2024

Special · Legal certification not established · candidate marks

  • MC29.1%
  • PT26.1%
  • MORENA19.5%
  • NAO6.5%
  • PUP4.2%
  • PVEM2.7%
  • PRI2.6%
  • MUJER1.9%
  • FXMO0.9%
  • PAN0.8%
  • PRD0.5%
  • C_PRD_NAO_10.1%
Results for event-3bb8af5b7423d72f9942a20a
Label / candidateParty codeVotesShareSeatsStatus
MCmexico/S6c64af5eeb/20246,00329.1%UnknownRecorded
PTmexico/S6c64af5eeb/20245,39126.1%UnknownRecorded
MORENAmexico/S6c64af5eeb/20244,02419.5%UnknownRecorded
NAOmexico/S6c64af5eeb/20241,3416.5%UnknownRecorded
PUPmexico/S6c64af5eeb/20248704.2%UnknownRecorded
PVEMmexico/S6c64af5eeb/20245562.7%UnknownRecorded
PRImexico/S6c64af5eeb/20245322.6%UnknownRecorded
MUJERmexico/S6c64af5eeb/20244021.9%UnknownRecorded
FXMOmexico/S6c64af5eeb/20241950.9%UnknownRecorded
PANmexico/S6c64af5eeb/20241710.8%UnknownRecorded
PRDmexico/S6c64af5eeb/20241120.5%UnknownRecorded
C_PRD_NAO_1mexico/S6c64af5eeb/2024120.1%UnknownRecorded

2021

Special · Legal certification not established · candidate marks

  • MORENA18.2%
  • PT15.5%
  • PAN10.1%
  • PUP9.0%
  • PES8.7%
  • CAND_IND116.8%
  • PRI6.1%
  • PRD4.8%
  • NAO4.6%
  • PVEM4.6%
  • CAND_IND103.3%
  • CAND_IND91.9%
  • MC1.4%
  • FXM1.2%
  • RSP1.1%
Results for event-34762cb56acdca0633f3bffa
Label / candidateParty codeVotesShareSeatsStatus
MORENAmexico/Sdaf611ccc4/20213,28418.2%UnknownRecorded
PTmexico/Sdaf611ccc4/20212,79015.5%UnknownRecorded
PANmexico/Sdaf611ccc4/20211,82110.1%UnknownRecorded
PUPmexico/Sdaf611ccc4/20211,6219%UnknownRecorded
PESmexico/Sdaf611ccc4/20211,5648.7%UnknownRecorded
CAND_IND11mexico/Sdaf611ccc4/20211,2226.8%UnknownRecorded
PRImexico/Sdaf611ccc4/20211,0926.1%UnknownRecorded
PRDmexico/Sdaf611ccc4/20218684.8%UnknownRecorded
NAOmexico/Sdaf611ccc4/20218354.6%UnknownRecorded
PVEMmexico/Sdaf611ccc4/20218344.6%UnknownRecorded
CAND_IND10mexico/Sdaf611ccc4/20215883.3%UnknownRecorded
CAND_IND9mexico/Sdaf611ccc4/20213431.9%UnknownRecorded
MCmexico/Sdaf611ccc4/20212531.4%UnknownRecorded
FXMmexico/Sdaf611ccc4/20212121.2%UnknownRecorded
RSPmexico/Sdaf611ccc4/20211931.1%UnknownRecorded

2018

Special · Legal certification not established · candidate marks

  • PUP25.7%
  • PT_MORENA_ES23.2%
  • PAN_PRD_MC18.4%
  • CAND_IND1615.7%
  • PRI_PVEM_PANAL7.1%
  • PSD5.3%
  • PMR1.3%
Results for event-c12014695b20734547a814b6
Label / candidateParty codeVotesShareSeatsStatus
PUPmexico/Sedf6ee177e/20184,71625.7%UnknownRecorded
PT_MORENA_ESmexico/Sedf6ee177e/20184,27223.2%UnknownRecorded
PAN_PRD_MCmexico/Sedf6ee177e/20183,38718.4%UnknownRecorded
CAND_IND16mexico/Sedf6ee177e/20182,88015.7%UnknownRecorded
PRI_PVEM_PANALmexico/Sedf6ee177e/20181,3057.1%UnknownRecorded
PSDmexico/Sedf6ee177e/20189815.3%UnknownRecorded
PMRmexico/Sedf6ee177e/20182351.3%UnknownRecorded

4. Competition and volatility

competition index

Provisional imported-series CI

85.160–100 historical closeness

Actual-event and/or comparability review incomplete

Comparison status: Provisional imported-series comparison; actual-event review open

Method ci.weighted-gap.v1. Inputs: latest_gap=3.121015860064258, oldest_gap=2.497749774977496, previous_gap=2.819634703196348

pedersen volatility

Provisional volatility

42.51percentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Latest interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Latest interval, vectors=[[0.872048549135601,2.713039930644092,0.5711663011882299,27.492477943801315,2.8354327094701413,30.613493803865573,20.52118924983426,14.38115151206079],[10.393835616438356,6.232876712328767,4.954337899543379,15.924657534246576,4.760273972602739,1.4440639269406392,18.744292237442924,37.54566210045661],null]

pedersen volatility

Withheld volatility

Unknownpercentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Previous interval · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Previous interval, vectors=[[0.872048549135601,2.713039930644092,0.5711663011882299,27.492477943801315,2.8354327094701413,30.613493803865573,20.52118924983426,14.38115151206079],[10.393835616438356,6.232876712328767,4.954337899543379,15.924657534246576,4.760273972602739,1.4440639269406392,18.744292237442924,37.54566210045661],null]

pedersen volatility

Withheld volatility

Unknownpercentage points

Grouped Pedersen lower bound (percentage points). Seven exact standalone INE party labels. Joint coalition combinations, independents and other parties remain Other, without allocating coalition votes. This coarse grouped comparison can conceal coalition-member shifts and requires the stated geographic/event review. An interval is withheld if either election has no list mapped to an explicit named group. This is aggregate share change, not individual voter switching. Event review: Actual-event and/or comparability review incomplete

Comparison status: Both intervals mean · Comparable grouped vectors unavailable for this interval

Method pedersen.grouped.v1. Inputs: groups=["PAN","PRI","PRD","PT","PVEM","MC","MORENA","Other"], interval=Both intervals mean, vectors=[[0.872048549135601,2.713039930644092,0.5711663011882299,27.492477943801315,2.8354327094701413,30.613493803865573,20.52118924983426,14.38115151206079],[10.393835616438356,6.232876712328767,4.954337899543379,15.924657534246576,4.760273972602739,1.4440639269406392,18.744292237442924,37.54566210045661],null]

Source-reported control: Unverified. Current tenure requires separate dated evidence.

5. Officeholder evidence

Dated roster observations are not automatically current tenure. The source current-office flag means this office is tracked now, not that the last winner still holds it.

No officeholder observation supplied.

6. Polling context

No local poll supplied.

7. Unresolved issues and sources

No open research issues attached to this office.

Sources

Cite this record

Center for Digital Democracy. “VILLA DE ZAACHILA — Municipal government.” Subnational Election Observatory, releaselatin-america-fe5e91689def, snapshot 2026-09-13. /electiondatabase/offices/MX-M-20-566. Sources: mexico--url-3635e08ffbefd711526cbeea, mexico--S6c64af5eeb, mexico--Sdaf611ccc4, mexico--Sedf6ee177e.